Well, Street Sense is in the 8 hole, practically on the end with only CP West to his right. Historically Street Sense prefers the rail, so Borel will likely try to get him over to the rail, but if that doesn't happen, we could end up with another Bluegrass Stakes, in which Street Sense made his customary late run but didn't get up there in time to win. To his credit, the 8 horse did win the Preakness last year (Bernardini, who also won the Belmont Stakes), and Street Sense just had a good work, 5 furlongs in 1 min. So he's fit and ready; much will depend on the trip he gets.
I'm thinking, "Look out for Circular Quay!" He's beaten Street Sense in similar conditions and has the 3 post position. He posed no threat in the Kentucky Derby because he was badly bumped and seemed to say "screw this!" He gave very little and consequently has saved a lot. (Either that, or the horse hasn't got the will to win.)
Curlin is at post position 4 and seems poised to have a good race.
There's also Hard Spun, who could possibly have given his all in the Derby and will bounce in this race.
These are, so far, in my opinion the four most serious contenders, but that's only at a very quick glance over the field. I'll handicap the race more seriously later and then post my picks (probably sometime tomorrow).